The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 12, 2016
Filed:
Feb. 26, 2015
Masashi Suzuki, Saitama, JP;
Koichi Murota, Tokyo, JP;
Tatsuo Ohyama, Kanagawa, JP;
Yuichiro Shukuya, Kanagawa, JP;
Tatsuya Miyadera, Kanagawa, JP;
Masashi Suzuki, Saitama, JP;
Koichi Murota, Tokyo, JP;
Tatsuo Ohyama, Kanagawa, JP;
Yuichiro Shukuya, Kanagawa, JP;
Tatsuya Miyadera, Kanagawa, JP;
RICOH COMPANY, LTD., Tokyo, JP;
Abstract
An image writing device includes an exposure device to repeatedly expose a surface of an image bearer along a main-scanning direction during an image forming period to write an image on the image bearer, a speed change detector to detect a change in moving speed in a sub-scanning direction of the surface of the image bearer, a first signal generation circuit to generate a first signal, an image forming period signal generation circuit to generate an image forming period signal synchronously with the first signal, a second signal generation circuit to generate a second signal, the second signal initially appearing in the image forming period being in synchronization with the first signal, and a line synchronization signal generation circuit to generate a line synchronization signal synchronously with the second signal and transmit the line synchronization signal to the exposure device during the image forming period.